Waitley Denis. (1995). Empires of the Mind. Nicholas Brealey.
Cita Chicago Style (17a ed.)Waitley Denis. Empires of the Mind. London: Nicholas Brealey, 1995.
Cita MLA (9a ed.)Waitley Denis. Empires of the Mind. Nicholas Brealey, 1995.
Precaución: Estas citas no son 100% exactas.